Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8129649 | Magnetic arc welding method for workpieces with open cross-sections A method for Magnetic Arc welding for metallic materials wherein at least one of the workpieces to be welded has an open cross-section. The method comprises bracing the two workpieces and moving them together, wherein the open cross-section of one workpiece is bridg... | 03/06/2012 |
| 7875823 | Process for assembling a high speed hollow rotor shaft A hollow rotor shaft for use in a small twin spool gas turbine engine in which the hollow rotor shaft is assembled by welding two hollow shaft sections together to form the single shaft assembly. One of the hollow shaft sections includes a lip that functions to form... | 01/25/2011 |
| 7547859 | Method for repairing heat recovery steam generator tube-to-header damage A method for repairing a heat recovery steam generator (HSRG) header to tube attachment damage, includes providing an access window in the header opposite the damaged header to tube attachment location; removing the header to tube attachment damage; inserting a tape... | 06/16/2009 |
| 7414222 | Method and apparatus for pulse and short circuit arc welding A method and apparatus for multi process welding includes providing a controlled short circuit output and a pulse output in response to a user selection across a workpiece output stud and a torch output stud. ... | 08/19/2008 |
| 7386927 | Apparatus to roll, cut, weld, and form tank car outer jackets A system and method of fabricating tank car outer jackets are provided that include supporting a plurality of coils of sheet metal on a plurality of coil supports such that the central longitudinal axes of the plurality of coils are generally parallel to a central l... | 06/17/2008 |
| 7350386 | Method and apparatus for making tubes In a method of making a tube, a sheet metal blank is placed in a U-shaped cavity of a lower mold of a shaping tool, and pressed into the cavity by a ram to shape the blank into a U-shaped configuration. In a next process step, the U-shaped blank is formed between an... | 04/01/2008 |
| 7329829 | Optical cable unit An optical cable unit has a metal tube with a longitudinal laser-welded seam and at least one optical waveguide in the interior of the metal tube. The metal tube has a first inner layer and a second outer layer, where the first inner layer is made from copper and th... | 02/12/2008 |
| 7304267 | Method and a device for depositing a welding material in an annular facing machined in a spherical wall Welding material is deposited automatically in the annular facing. A welding torch is causes to rotate about an axis of rotation that extends in a direction that is radial relative to the spherical wall and that passes through a point of the concave inside surface o... | 12/04/2007 |
| 7285747 | Flux assisted gas tungsten arc welding utilizing consumable inserts for ultra low profile welding applications A speedy method of welding in a tight space using a single pass is provided using a technique which involves the use of a particularly shaped, flux treated consumable insert to provide deep weld penetration by a GTAW machine which is compact and fits the narrow spac... | 10/23/2007 |
| 7255334 | Air suspension piston The invention relates to an air suspension piston, with the air suspension piston being tube shaped and being made of aluminium. The air suspension piston is formed by a longitudinal-seam welded tube made from an aluminum alloy, and the tube has been longitudinal-se... | 08/14/2007 |
| 7246736 | Supplying shielding gas A flexible articulate tubular device has a shank, a plurality of pivot rings, and a terminus with heat sensors and a fiber optic device. The flexible articulate tubular device is initially positioned, either manually or automatically, near a target weld path with th... | 07/24/2007 |
| 7241971 | Laser/arc hybrid welding process for ferritic steels A method and an apparatus for a hybrid laser beam and electric arc welding process. A laser beam, an electric arc, a shielding gas and a consumable welding wire are used to create a weld on a steel work piece by melting the welding wire. The weld contains 30 to 1000... | 07/10/2007 |
| 7241961 | TIG welding method A TIG welding method of welding a first part with a first wall and an end edge to a second part with a second wall and an edge along a junction surface between said edges and along which the first wall forms a salient angle with the second wall. The TIG welding elec... | 07/10/2007 |
| 7214899 | Process for the continuous production of longitudinally welded metal tubes A process for the continuous production of longitudinally welded metal tubes where a metal strip (1) is drawn from a strip supply and gradually shaped into a slit tube in a shaping station (2). The slit tube is welded in a welding system (4) alo... | 05/08/2007 |
| 7189941 | Process for making heterogeneous joints under shielding gas In joining heterogeneous materials that differ in their melting points, a shielding gas mixture with active gas content is utilized. In particular, the shielding gas mixture contains helium and active gasses in the vpm range (0.005 to 0.5% by volume). These shieldin... | 03/13/2007 |
| 7170032 | Process for welding A welding process for non-stainless steel workpieces using GTAW equipment and hydrogen containing shield gas on a first root pass is improved by using a shield gas delivery system comprising hoses or conduits made of elastomeric material having a moisture permeabili... | 01/30/2007 |
| 7122761 | Friction processing weld preparation A weld preparation process that translates a consumable or nonconsumable tool over an area that is subsequently to be welded to impart friction heating to the surface. Rotary or linearly oscillated motion between the tool and the workpiece is used to generate heat a... | 10/17/2006 |
| 7114881 | Method and apparatus for welding pipes together A method of laying a pipeline (6) underwater includes the steps of holding an end of a pipeline (6), providing a pipe section (5) for extending the pipeline (6), arranging the pipe section (5) adjacent to the end of pipeline (6 | 10/03/2006 |
| 7112358 | Self-adhesive purge dam for retaining purge gas around a weld zone A self-adhesive purge dam for retaining purge gas around a weld zone includes a base configured to substantially obstruct an air passage leading to the weld zone and an adhesive skirt extending from the base and configured to engage portions of the air passage. An a... | 09/26/2006 |
| 7082992 | Oil well steel pipe for embedding-expanding An oil well steel pipe for embedding-expanding excellent in the SSC resistance after expanding. The pipe is made of a steel consisting of, by mass %, C: 0.05 to 0.45%, Si: 0.1 to 1.5%, Mn: 0.1 to 3.0%, P: 0.03% or less, S: 0.01% or less, sol.Al: 0.05% or less, and t... | 08/01/2006 |
| 7045741 | Electric arc welding device, method of welding metal sheets to metallic counterpieces, and welding element An electric arc welding device (10) for butt welding metallic sheets (12; 72; 80; 90; 92; 94; 100) is provided having an elongated face (22) onto metallic counterpieces (14), having a holding device (16; 16, 74) for holding a sheet... | 05/16/2006 |
| 7032809 | Seam-welded metal pipe and method of making the same without seam anneal An apparatus and method for making a seam-welded steel pipe free of untempered martensite without seam anneal. The method includes selecting a steel containing a carbon concentration below a predetermined level, for example, 0.14% or 0.12% by weight. The method also... | 04/25/2006 |
| 7028882 | Process and apparatus for boiler tube panel welding and straightening An apparatus and process for depositing an overlay weld on a boiler tube panel comprising a plurality of tubes with adjacent tubes joined together with membranes therebetween, and then straightening the panel in response to bowing that occurs as a result of depositi... | 04/18/2006 |
| 7022932 | Outer shell unit and method of manufacturing the unit A manufacturing method for an outer shell unit (10) provided with a cylindrical outer shell (3) housing a damping force generating mechanism and a knuckle bracket (7) mounted on the outer shell (3) to connect a knuckle. The knuckle bracke... | 04/04/2006 |
| 7021519 | Friction welding In one aspect the invention provides a friction welded component and a method of manufacture for such a component, comprising friction welding a reinforcement element (10) at an end cross-section thereof to a surface of a thin walled member (12) with a... | 04/04/2006 |
| 7012217 | Method and apparatus for making welded large pipes In a method and apparatus for making welded large pipes, a leading end of a hot strip is connected to a trailing end of a leader strip and then subjected to a two-stage leveling for strip flatness in transverse direction and strip flatness in longitudinal direction.... | 03/14/2006 |
| 6998560 | Method for metallurgically joining a tube to a member A method for metallurgically joining a tube to a member. A tube having a flange is obtained, and a member is obtained. A welding/brazing electrode wheel is obtained having an axis of rotation and having a rim. The tube and the member are positioned with the flange c... | 02/14/2006 |
| 6974931 | Method and apparatus for pulse and short circuit arc welding A method and apparatus for multi process welding includes providing a controlled short circuit output and a pulse output in response to a user selection across a workpiece output stud and a torch output stud. ... | 12/13/2005 |
| 6969818 | Tandem welding shielding gases A shielding gas for gas shielded metal-arc welding or brazing with multiple (in particular 2) wire electrodes, one common melting bath, and multiple power sources. Such shielding gases contain, for example, a small percentage of carbon dioxide or doping gas and poss... | 11/29/2005 |
| 6960333 | High performance heat exchangers Disclosed are means for improving the service-life of indirect tubesheet type heat exchangers used in chemical reactors, particularly those exposed to reducing, nitridizing and/or carburizing environments. Such means include the use of certain ferrules within the he... | 11/01/2005 |
| 6953907 | Method for metallurgically joining a tube to a member A method for metallurgically joining a tube to a member. A tube having a flange is obtained, and a member is obtained. The tube and the member are positioned with the flange contacting the member directly and/or indirectly through an intervening welding/brazing join... | 10/11/2005 |
| 6953147 | Method for joining a tube to a member A method for joining a tube to a member. A tube having a flange is obtained, and a member is obtained. The tube and the member are positioned with the flange contacting the member either directly or indirectly through an intervening joining material. The tube and/or... | 10/11/2005 |
| 6948648 | Misting manifold apparatus and method of manufacture A method and apparatus for a constructing misting manifold is disclosed that uses a standardized intermediate member joined to tubing. The method allows mass production, particularly with use of orbital welding, easy alignment of the component part and high quality ... | 09/27/2005 |
| 6924452 | Welding device and method A welding device and a welding method for butt welding two pipes to be welded are provided. The welding device comprises a welding device body, having an electrode unit with a welding electrode and a fixing clamp for holding the pipes to be welded; and electrode pos... | 08/02/2005 |
| 6911089 | System and method for coating a work piece A method and apparatus for coating a work piece. The system comprising an applicator adapted to travel over a portion of the work piece. The system being operable to heat the work piece and/or apply a coating onto the work piece as the applicator travels over the wo... | 06/28/2005 |
| 6875944 | Method for resistance welding/brazing a tube to a container A method for resistance welding/brazing a tube to a container. A tube is obtained having an axially-extending first portion and a tube form which extends transversely from the first portion. A container is obtained having an orifice. A support tool is obtained with ... | 04/05/2005 |
| 6858813 | Weld overlay system A process for applying a weld overlay to a tube with a single pass of a weld head. An inverter-type alternating current pulsed power source, composed of a primary inverter and a secondary inverter, is used to control the melting rate of welding wire during welding o... | 02/22/2005 |
| 6852945 | Laser welding boiler tube wall panels A method of welding together the parts of a boiler tube wall panel includes placing at least two parts of the panel to be welded together along a weld line and adjacent each other, and forming a weld along the weld line using a laser beam. The method can advantageou... | 02/08/2005 |
| 6847001 | Method for metallurgically joining a tube to a member A method for metallurgically joining a tube to a member. A tube is obtained having a longitudinal axis and having an end portion, wherein the end portion includes a fold, and wherein the fold includes longitudinally-spaced-apart first and second fold portions. A mem... | 01/25/2005 |
| 6806442 | Method and apparatus for splicing tubular heater sections An apparatus for splicing a heatable section of a tubular heater to a cold section, the heatable section includes an outer sheath, which has a heating element therein. The cold section includes an outer sheath which has a cold pin therein. The apparatus comprises an... | 10/19/2004 |
